Missing DNA helps make us human
Thursday, March 10, 2011 - 14:10
in Biology & Nature
A new study demonstrates that specific traits that distinguish humans from their closest living relatives - chimpanzees, with whom we share 96 percent of our DNA - can be attributed to the loss of chunks of DNA that control when and where certain genes are turned on. The finding mirrors accumulating evidence from other species that changes to regulatory regions of DNA - rather than to the genes themselves - underlie many of the new features that organisms acquire through evolution...